Method of making umbrella-frames.



vG. B. CANNON, JR. & F. W. HOWARD.

METHOD OF MAKING UMBRELLA FRAMES.

APPL|CAT|0N HLED MAY 24. 1915.

Patented Jan. 2, 1917. Fig 2 Illll il iiqward/ GHQ 9 B 6207014772.]; I Ja srnrns arana ensues.

GEORGE B. oANNoN, an, or BROOKLYN, AND rnANKw. nowann, or NEW YonK, N. Y.

METHOD OF MAKING UMBRELLA-FRAMES.

Specification of Letters latent.

Patented Jan. 2, 191%.

Application filed May 24, 1915. I Serial No. 30,060.

To all whom it may concern:

Be it known that we, GEORGE B. CANNON, J1'., and FRANK W. HOWARD, both citizens of the United States, said GEORGE B. CANNON, Jr, residing at Brooklyn, in the county of Kings and State of New York, and whose post-ofiice address is i Rogers avenue, Brooklyn, New York, said FRANK, W. How- ARD residing at New York city, in the county of, New York and State of New York, and whose post-office address is 9 Fort Washington avenue, New York city, New York, have invented new and useful Improvements in Methods of Making Umbrella-Frames, of which the following is a specification.

This invention relatesto umbrellas and particularly to the construction of umbrella frames.

A principal object of the invention is to produce a very simple and: economical method for constructing part ofan umbrella frame, particularly the part comprising the stick, crown and ribs of the umbrella.

One, of the objects of the invention is to provide a method for constructing and attaching these parts which will avoid the necessity for providing relatively costly con-j nections such as pivotal connections for connecting the ribs with the crown; and also to simplify the construction and the attaching togetherof the stick, crown-sleeve and ribs.

Further. objects of the invention will appear more clearly, hereinafter.

The invention consists in the general procedure and details thereof hereinafter described, all of which contribute to. produce an efficient method for making part of an umbrella frame. T

A preferred embodiment of our invention will be particularly described in'the following specification-while'the broad scope of our invention will be pointed out in the ap pendedjclaims. 1 V

In the drawing, Figure 1 is a plan indicating one way of carrying out our invention. Fig. 2 is a cross section taken about on the line 22 of Fig. 1. Fig.3 is a side elevation showing the upper portion of one of the rib members. Fig. 4: is a cross section taken onthe line 44: of Fig. 6-, showing the relation-ofthe crown-sleeve, ribs and stick. Fig. 5 is a vertical section taken through the crown-sleeve and ribs after being united and representing thesame without showing thestick. Fig. 6 isa side elevae ribs and stick attached together when the parts are united in the manner illustrated in Fig. 8.

Before proceeding to a detailed description of the parts, it should be said that according to our method, we prefer to unite the ribs and the sleeve integrally preferably through the application of heat. According to this method, in one way we may simply weld the ribs to the sleeve member or we may mold the'ribs inthe wall of the sleeve. We shall first describe the welding method which we call the spot-welding method for securing the ribs to the sleeve member. In order to do this, we prefer to produce an elongated strip 20 ofthin sheet metal, and we bend one of the longitudinal edges of this strip so as to form a laterally projecting curved lip 21. We also produce a plurality of rib members 22 with flat extensions or ends 23. These ribs or rib members 22 are preferably formed of resilient material such as steel. tended to flex to permit the umbrella to be opened and closed. We arrange these ribs so that they are spaced apart, preferably equidistant alongthe strip 20 and we hold these ribs with their flatends lying flat against the strip. By referring to Figs. 2 and 3, it will be seen that the flattened ends 23 are formed with a slight bend or bow 25 just below the lip 21. The extreme ends 26 of the ends 23 maybe alined with the longitudinal edge of the strip opposite to the lip 21. With the ribs held upon thestrip, we prefer to secure The ends 23 are flexible and inthe ribs. This secures the ribs integrally to the strip. We then cut the strip 20 into short sleeve members or hands 29, by severing the strip at equidistant points as indicated by the dotted lines 28. One of these lengths 29 of the strip may then be treated in either of two ways in order to complete it to the stick.

. tached ribs is formed such as that illustrated inFig. 5, in which the upper ends of the ribs are integrally united to the completed sleeve 30. Furthermore, the ends 23 of the ribs are on the inner face of the sleeve. The lip 21 on the band or strip now forms an outwardly projecting circumferential lip 31 around the lower end of the-sleeve. This sleeve may then be secured toan umbrella stick by amming the stick through the sleeve. The diameter of the stick should be relatively large so that it willfit tightly in the sleeve. When a stick is forced into the sleeve in this way, the flat ends 23 of the rib crush into the face of the stick and this tends to prevent the sleevefrom twisting on the'stick and also insures a'very secure hold,

of the sleeve on the stick.

Instead of 'forming the sleeve first and then attaching it'to the'stick, we may form the sleeve and simultaneously, attach it to the stick, simply by rolling one of the sleeve members or bands 29 around the stick. This should be done with considerable force, and'ma-y be accomplished in a roll press of any construction, suchas that shown in Fig. 7. g This press may comprise a block or base 32 carrying a plurality of rollers 33 arranged along a curved line and adapted to coeperate with presser rollers 34 which may be carried on a movable part or frame 35.

This frame 35 may be raised and lowered by means'of a handle 36 upon which pressure may beexerted. Fig. 7 illustrates the strip as partly rolled around the stick. In starting the strip, the inner end of the strip is laid under the stick 37 and considerable force is then exerted on the handle 36'so as to press the stick down onto the rolls 33 and cause the tongues or ends 23to crush into the face of the stick. The stick 37 is then rotated'forcibly on its axisand this has the effect of bending andwrapping the band or sleeve member around the stick with the flat ends of the ribs substantially embedded in the stick. When this method is practised in the manner illustrated in Fig. 1, it is unnecessary to attach the-ends of the band together as the ends of the'ribs tend to'hold the sleeve against rotation and also prevent the sleeve from sliding'longitudinally.

If desired, we may-unite the ribs to the sleeve integrally by molding the. sleeve around the ribs. In order to-accomplishthis, we preferto arrangev aplurality of the ribs with the flattened ends of the ribs spaced apart and equidistant from each other ina circumferential arrangement, the axes of forth.

the flattened'ends of the ribs being parallel with a common axis. This is preferably ace 'complishe'd by means of a mold 38 formed into a base or center section 39 and a body 7 section 40. In addition to this, there is proribs will have a: good hold in the sleeve, we r prefer to turn the tips or the ends4c2 outwardly as at 45. This practically gives the sleeve a'lip at both ends, and in order to enable the sleeve to be withdrawn from the mold, it-is necessary to form the moldwith asplitor sectional center ring :46. a

If; the ribs, sleeve and stickare produced. in the manner indicated in Fig. 7,ithey will present the appearance indicated 'inlFig. 6.-

If they are produced as indicated-"in Fig. 8, they will present the appearance indicated in Fig. 9. The cover can be secured-to the stick and ribs in any suitable manner, and the' complete' frame should, of course,iin-

connected bystretchers with" the ribs.

It is understood thatxthe embodiment of elude arunner of any suitable construction the invention set forth'herein is only one of the many embodiments o'r forms the invention may take, andwedonot-wish to be limitedin the practice of the invention nor in our claims to the particular embodiment set What we claim-is: F

1. The method of making part 'of an mm brella frame which consists in forming a plurality of resilient rib members with flexi- I ble substantially flat ends, arranging "said flexible ends spaced apart and adjacent to' each other, and integrally uniting said flat ends to a sleeve member. i

' 2. Themethod of making part of'an umbrella frame whichconsists in forming a plurality of resilient rib members with substantially fl'a t flexible ends, arranging said flexible ends spaced apart and adjacen'tto each other, integrally uniting s'aid'flat ends to a sleeve, member, and securing the sleeve member upon an umbrella stick.- v

3.- The method of making part ofan brella frame which consists in forminga plurality of rib members with flexible ,substantially flat ends, holding said rib 'mem-' bers with said flat flexible endsspaced apart upon a substantially flat strip, securing the said flat extensions to said strip, and then rolling said strip into a sleeve. 7

l. Themethod of making part of an umbrella frame which consists inl-forming' a plurality of rib members with flexible substantially flat ends, holding said rib members with said flat flexible ends spaced apart upon a substantially flat strip, welding the said flat extensions to said strip, and then rolling said strip into a sleeve.

5. The method of making part of an umbrella frame which consists in forming a pluraltiy of rib members with flexible substantially flat ends, holding said rib members with saidflat flexible ends spaced apart upon a substantially fiat strip, securing the said fiat extensions to said strip, and then rolling said strip into a sleeve around the periphery of an umbrella stick.

6. The method of making part of an umbrella frame which consists in forming a Copies of this patent may be obtained for five cents each, by addressing the plurality of rib members with flexible sub stantially flat ends, holding said rib members with said flatflexible ends spaced apart upon a substantially flat strip, securing the said flat extensions to said strip, and then rolling said strip into a sleeve around the periphery of an umbrella stick with said flat ends disposed inwardly and crushed into the face of the stick.

In testimony whereof we have hereunto set our hands in presence of two subscribing witnesses.

GEORGE B. CANNON, JR. FRANK W. HOWARD. Witnesses:

Enwoon B. HoUsnR, FLORENCE PETERS.

"Commissioner of ratents,

Washington, D. 0. 

